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Topic: RRC-1258MkIIs Feedback Problems (Read 229 times)

Can anyone help me out, i am having problems when i key the Microphone on Kenwood 480 Sat, i have been told there is feedback from my audio with the RRC-1258MkIIs boxes.

The radio works fine without Remoterig so not sure if it could be the way the jumpers and red cables are configured in both boxes. Could anyone tell me is there i link that i can look at the way control and radio should be installed inside.

Make sure that the radio and the RRC are using separate power supplies. Try reducing power to seeif this solves your problem and verifies that it is an RF problem. Make sure that your monitor is turnedcompletely off.

Regarding making sure that my monitor is turned completely off the problem is when i key up the microphone and don't speak it like sending out a signal showing the TX power signal. Also shows up feedback on, alc & proc on usb mode.

Been told that my audio is bad on each Mod but is fine when i remove radio and work from my car. This is the reason for looking for information how the Jumper's should be installed and 5 red cables from each box to try fix error here.

Well, to be quite honest, there is nothing more that anyone can tell you beyond following the instructionsin the manual and what I told you. If you follow the instructions and wire things correctly, it will work just fine.

If there are RFI problems, that is a different story, but I assume from your answer that this is not the issue.

Hi Gary,I just wanted to mention a problem I had when I started up with rrc for more than two years ago. I was using a long eth-cable from the rrc to the router, and the long cable caused a lot of trouble with rfi. Since then, after replacing the long cable, I have had no trouble with the Remoterig equipment, running Kw Ts-480sat and Icom ic-706.

I have tried cable about 3 feet and also very long cable that runs from my Router to spare room where i have radio located with same problem. Also have tried wireless WiFi WNCE2001 Netgear also same problem.

Have tried hand Mic, Desk Mic and my EQplus also and still shows Rf. Radio works fine with original Mic in car and also when i just use out side antenna. I have also checked SWR and is ok this side Alf.

After looking more into information regarding RFI in the Users manual I have noticed that Kenwood have changed the layout of the Mic connector during two different configurations.

Shown in the manual the newer radios are using type 1 and the older kenwood 480 Sat here is work with config type 2, after changing over to the old config it seems to have solved RFI using hand Mic and EQplus system.